CN204575676U - A kind of ultrasonic device for measuring flow rate of liquid - Google Patents

A kind of ultrasonic device for measuring flow rate of liquid Download PDF

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Publication number
CN204575676U
CN204575676U CN201520228889.9U CN201520228889U CN204575676U CN 204575676 U CN204575676 U CN 204575676U CN 201520228889 U CN201520228889 U CN 201520228889U CN 204575676 U CN204575676 U CN 204575676U
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CN
China
Prior art keywords
flowtube
liquid
flow rate
plane
measuring
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Expired - Fee Related
Application number
CN201520228889.9U
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Chinese (zh)
Inventor
孙来军
戚健
吴兴中
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Jiangsu Third Occasion Electronics Co Ltd
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Jiangsu Third Occasion Electronics Co Ltd
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Priority to CN201520228889.9U priority Critical patent/CN204575676U/en
Application granted granted Critical
Publication of CN204575676U publication Critical patent/CN204575676U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a kind of ultrasonic device for measuring flow rate of liquid, comprising: a flowtube, and its outer wall side is provided with two installation through holes along flow direction is spaced apart; Two reflection pillar, corresponding described flowtube two installs through hole, insert in flowtube by flowtube outer wall opposite side respectively, the two reflection pillar one end end face be positioned at inside flowtube is inclined-plane, two inclined-planes are symmetrical arranged and two inclined-plane extended surfaces intersect in 90 °, it is relative that through hole is also installed with flowtube two respectively in this two inclined-plane, forms ultrasonic reflection face.The ultrasonic teletransmission mode of described device employing time difference method efficiently solves and causes the coarse shortcoming of measuring accuracy because of the wearing and tearing of mechanical rotation part, and measuring tube part adopts " undergauge " technology, increases the stability of flow rate of liquid, improves measuring accuracy.

Description

A kind of ultrasonic device for measuring flow rate of liquid
Technical field
The utility model relates to a kind of ultrasonic device for measuring flow rate of liquid.
Background technology
So-called flow, refers in the unit interval Fluid Volume flowing through closed conduct or open channel free area, also known as instantaneous delivery.Volumetric flow rate is called, when Fluid Volume is called mass rate with during quality representation when flow represents with volume.
Existing flow measurement device, adopts mechanical measurement mode mostly, but, mechanical measuring device in use for some time, there will be and cause the coarse problem of measuring accuracy because of the wearing and tearing of mechanical rotation part, and in measurement pipe fitting, flow rate of liquid is too fast, also easily cause measuring accuracy not high.
Utility model content
For solving above-mentioned Problems existing, the purpose of this utility model is to provide a kind of ultrasonic device for measuring flow rate of liquid, the ultrasonic teletransmission mode of described device employing time difference method efficiently solves and causes the coarse shortcoming of measuring accuracy because of the wearing and tearing of mechanical rotation part, and, measuring tube part adopts " undergauge " technology, increase the stability of flow rate of liquid, improve measuring accuracy.
For achieving the above object, the technical solution of the utility model is:
For measuring a ultrasonic device for flow rate of liquid, comprising: a flowtube, its outer wall side is provided with two installation through holes along flow direction is spaced apart; Two reflection pillar, corresponding described flowtube two installs through hole, insert in flowtube by flowtube outer wall opposite side respectively, the two reflection pillar one end end face be positioned at inside flowtube is inclined-plane, two inclined-planes are symmetrical arranged and two inclined-plane extended surfaces intersect in 90 °, it is relative that through hole is also installed with flowtube two respectively in this two inclined-plane, forms ultrasonic reflection face.
Further, described flowtube two is installed through hole and is positioned at above flow liquid in pipe.
Separately, described flowtube two is installed through hole and is positioned at flowtube liquid side.
Separately have, flowtube is less than flowtube at the internal diameter of two parts of installing between through holes and is positioned at part internal diameter outside two installation through holes.
Again, arrange for sealing between described two reflection pillar and flowtube.
Further, described two reflection pillar inclination angle of inclined plane are respectively 45 °.
And, be respectively equipped with screw thread outside described flowtube two ends.
Ultrasound wave is propagated in a liquid has certain travel-time, and when there being liquid flow in flowtube, the time that the time that ultrasound wave adverse current (contrary with flow direction) is propagated propagates than following current (along flow direction) is long.Therefore adverse current and downstream propagation have the individual mistiming, and this mistiming is just directly proportional to the flow velocity of liquid in pipeline, just can calculate the flow velocity of trying to achieve in pipeline by the time gathering adverse current and following current.
The utility model beneficial effect is:
Flowtube arranges two installation through holes along flow direction interval, coordinates reflection pillar, two reflection pillar adopt in press press-in Stainless Steel Shell, have sealing property.And the two symmetrical settings in reflection pillar inclined-plane, the extended surface on two 45 ° of inclined-planes intersects in 90 °, form " U " type reflection of ultrasonic transducer ray, the reflection of " U " type has the uniform advantage that is stressed, and, carry out the ultrasonic teletransmission mode of time difference method by the reflection of " U " type and measure flow rate of liquid, efficiently solve and cause the coarse shortcoming of measuring accuracy because of the wearing and tearing of mechanical rotation part.
Ultrasound wave base table structure adopts Stainless Steel Shell, not containing plastic construction in whole base table.Reflecting surface adopts stainless steel material to make, and reflecting surface cuts into 45 degree by right cylinder and domaticly then to make through polishing.
Two install through hole is positioned at above flow liquid in pipe or side, makes ultrasonic transducer remain at above liquid or side, does not have the out of true that scale precipitation causes measuring accuracy on the transducer.
Flowtube adopts the treatment technology of " undergauge " in two parts of installing between through hole, and stablizing of guaranteed flow liquid in pipe flow velocity, improves precision measure resolution.Keeping taking the method for " undergauge " to efficiently solve the stability of low discharge under the qualified prerequisite of crushing.
Accompanying drawing explanation
Fig. 1 is the stereographic map of the ultrasonic device for measuring flow rate of liquid described in the utility model embodiment.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is that the A-A of Fig. 2 is to cut-open view.
Fig. 4 is the ultrasonic device use principle schematic diagram for measuring flow rate of liquid described in the utility model embodiment.
Embodiment
See Fig. 1 ~ Fig. 4, the ultrasonic device for measuring flow rate of liquid described in the utility model, comprising: a flowtube 1, and its outer wall side is provided with two installation through holes 11,11 ' along flow direction is spaced apart; Two reflection pillar 2,2 ', corresponding described flowtube 1 liang installs through hole 11,11 ', insert in flowtube 1 by flowtube 1 outer wall opposite side respectively, two reflection pillar 2,2 ' one end end faces be positioned at inside flowtube 1 are inclined-plane 21,21 ', two inclined-planes 21,21 ' are symmetrical arranged and two inclined-plane 21,21 ' extended surfaces intersect in 90 °, through hole 11,11 ' relative is also installed on this two inclined-plane 21,21 ' respectively with flowtube 1 liang, form ultrasonic reflection face.
Further, described flowtube 1 liang installation through hole 11,11 ' is positioned at above flowtube 1 liquid.
Separately, described flowtube 1 liang installation through hole 11,11 ' is positioned at flowtube 1 liquid side.
Separately have, the internal diameter of the part that flowtube 1 is positioned between two installation through holes 11,11 ' is less than the part internal diameter that flowtube 1 is positioned at two installation through hole 11,11 ' outsides.
Again, described two reflection pillar 2, arrange for sealing between 2 ' and flowtube 1.
Further, described two inclination angles, reflection pillar 2,2 ' inclined-plane 21,21 ' are respectively 45 °.
And, be respectively equipped with screw thread 12 outside described flowtube 1 two ends.
Device described in the utility model use assembling and use principle as follows:
Reflection pillar 2,2 ' inclined-plane 21,21 ' adopts stainless steel material to make, and inclined-plane 21,21 ' cuts at 45 ° domaticly then to make through polishing by right cylinder.Reflection pillar 2,2 ' adopts in press press-in Stainless Steel Shell, has sealing property.And the extended surface on reflection pillar 2,2 ' inclined-plane 21,21 ' intersects in 90 °.
Use principle is see Fig. 4, by two ultrasonic transducers 100, 100 ' installs through hole 11 by flowtube 1 liang respectively, 11 ' inserts inside flowtube 1, respectively with reflection pillar 2, 2 ' inclined-plane 21, 21 ' relatively, two ultrasonic transducers 100, 100 ' the ultrasound wave launched is through reflection pillar 2, 2 ' inclined-plane 21, 21 ' reflection, " U " type that formed reflection, propagate in a liquid due to ultrasound wave and there is certain travel-time, when there being liquid flow in flowtube 1, the time that the time that ultrasound wave adverse current (contrary with flow direction) is propagated propagates than following current (along flow direction) is long, therefore adverse current and downstream propagation have the individual mistiming, this mistiming is just directly proportional to the flow velocity of liquid in flowtube 1, just the flow rate of liquid of trying to achieve in flowtube 1 can be calculated by the time gathering adverse current and following current.
It should be noted that, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted.Although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical scheme of utility model or equivalent replacement, and not departing from the scope of technical solutions of the utility model, it all should be encompassed in right of the present utility model.

Claims (7)

1., for measuring a ultrasonic device for flow rate of liquid, it is characterized in that, comprise:
One flowtube, its outer wall side is provided with two installation through holes along flow direction is spaced apart;
Two reflection pillar, corresponding described flowtube two installs through hole, insert in flowtube by flowtube outer wall opposite side respectively, the two reflection pillar one end end face be positioned at inside flowtube is inclined-plane, two inclined-planes are symmetrical arranged and two inclined-plane extended surfaces intersect in 90 °, it is relative that through hole is also installed with flowtube two respectively in this two inclined-plane, forms ultrasonic reflection face.
2. the ultrasonic device for measuring flow rate of liquid according to claim 1, is characterized in that, described flowtube two is installed through hole and is positioned at above flow liquid in pipe.
3. the ultrasonic device for measuring flow rate of liquid according to claim 1, is characterized in that, described flowtube two is installed through hole and is positioned at flowtube liquid side.
4. the ultrasonic device for measuring flow rate of liquid according to claim 1 or 2 or 3, is characterized in that, flowtube is less than flowtube at the internal diameter of two parts of installing between through holes and is positioned at part internal diameter outside two installation through holes.
5. the ultrasonic device for measuring flow rate of liquid according to claim 1, is characterized in that, arranges between described two reflection pillar and flowtube for sealing.
6. according to claim 1 or 5 for measuring the ultrasonic device of flow rate of liquid, it is characterized in that, described two reflection pillar inclination angle of inclined plane are respectively 45 °.
7. the ultrasonic device for measuring flow rate of liquid according to claim 4, is characterized in that, is respectively equipped with screw thread outside described flowtube two ends.
CN201520228889.9U 2015-04-16 2015-04-16 A kind of ultrasonic device for measuring flow rate of liquid Expired - Fee Related CN204575676U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520228889.9U CN204575676U (en) 2015-04-16 2015-04-16 A kind of ultrasonic device for measuring flow rate of liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520228889.9U CN204575676U (en) 2015-04-16 2015-04-16 A kind of ultrasonic device for measuring flow rate of liquid

Publications (1)

Publication Number Publication Date
CN204575676U true CN204575676U (en) 2015-08-19

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105548594A (en) * 2015-12-07 2016-05-04 重庆多邦科技股份有限公司 Surface flow velocity sensor
CN105758478A (en) * 2016-04-20 2016-07-13 哈尔滨圣昌科技开发有限公司 Stainless-steel ultrasonic water meter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105548594A (en) * 2015-12-07 2016-05-04 重庆多邦科技股份有限公司 Surface flow velocity sensor
CN105758478A (en) * 2016-04-20 2016-07-13 哈尔滨圣昌科技开发有限公司 Stainless-steel ultrasonic water meter

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150819

Termination date: 20200416